Which of the Following Statements Is True When Considering Experimental

question 23

Multiple Choice

Which of the following statements is true when considering experimental versus non-experimental designs?

• A)It is difficult in descriptive studies to establish the prior equivalence of the respondent groups with respect to both the independent and dependent variables.However,experiments can establish this equivalence.
• B)Descriptive research offers little control over other possible causal factors.
• C)In descriptive research,it is also difficult to establish time order of occurrence of variables.However,in an experiment,the researcher controls the timing of the measurements and the introduction of the treatment.
• D)All of the above statements are correct.

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Definitions:

Methane

A colorless, odorless flammable gas that is the simplest alkane and a major component of natural gas, contributing significantly to the greenhouse effect.

Net Useful Energy Yield

The amount of energy that remains available for use after subtracting the energy expended in obtaining and converting it.

Oil

A fossil fuel formed from the decayed remains of ancient organisms, used primarily for energy production and as a raw material in manufacturing.

Natural Gas

A fossil fuel consisting mainly of methane, used for heating, electricity generation, and as fuel for vehicles, it's cleaner than other fossil fuels but still contributes to greenhouse gas emissions.